抄録
Earthquake waves recorded on the seismograph have been considered to depend chiefly on the mechanism of earthquake, path of the wave and local ground structure of the observatory. Deepseated earthquakes are comparatively free from anomalous groundstructure of the surface, and so the author tried to characterize the wave-froms in case of deepseated earthquakes and found vibrating character especially damping of the oscillator which is assumed to emitt seismic waves depends on its region of origin of the earthquke.
